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DeepSeek V4.1 Flash 💰 Best Value

by DeepSeek · Text & Chat · Code

DeepSeek's current flagship (Oct 17 build) · AA Intelligence Index 45 · DeepSWE v1.1 77.0 · 1M context · MIT open weights.

92/100AIVerso score
#13 of 43in Text & Chat
Free · API $0.30/$1.20 per 1MStarting price
YesFree tier
Try DeepSeek V4.1 Flash →Compare with alternatives →

What is DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is the current flagship from Chinese lab DeepSeek; the October 17 build now runs the DeepSeek app, website and API and replaced the older V4-Pro and V4-Flash models. It is released with open weights under the MIT license and offered through a very low-cost API with a 1M-token context, which makes it one of the cheapest ways to get strong reasoning and coding performance.

Best for

DeepSeek V4.1 Flash pricing

DeepSeek V4.1 Flash has a free tier. Price: Free · API $0.30/$1.20 per 1M.

Plans & prices

Prices as published by DeepSeek. This page was last updated on October 22, 2026; prices and plans change often, so check the provider’s pricing page before you buy.

Check current DeepSeek V4.1 Flash prices →

At a glance

ProviderDeepSeek
CategoryText & Chat, Code
Starting priceFree · API $0.30/$1.20 per 1M
Free tierYes
API accessYes
Open sourceYes
Context window1M tokens
Mobile appiOS & Android
Browser extensionYes

Key facts

Capability ratings

Math & Logice.g. AIME, MATH-500
90
Programminge.g. SWE-bench, LiveCodeBench
81
Reasoninge.g. GPQA, ARC
85
Knowledgee.g. MMLU-Pro
85
Long Contexte.g. MRCR, needle tests
92
Instruction Followinge.g. IFEval
86
Agent Capabilitye.g. Terminal-Bench, tool use
76

AIVerso capability ratings (0–100), an editorial summary informed by public benchmark results. Higher is better.

Features

✗ Image generation
✗ Video generation
✗ Native audio model
✗ Web search
✗ Voice mode (app)
✗ PDF analysis

Strengths

Free tier available
Open source / open weights — self-hostable
Large 1M token context window
API access for developers
iOS & Android apps
Browser extension available

Limitations

No built-in web search

Best alternatives to DeepSeek V4.1 Flash

Claude Opus 5.5
Anthropic · From $20/mo (Pro) — Higher score (99 vs 92)
Claude Opus 5.5 vs DeepSeek V4.1 Flash →
99
GPT-6 Astra
OpenAI · From $20/mo (Plus) — Higher score (98 vs 92)
98
Fugu Ultra v2
Sakana AI · $5/$30 per 1M tokens — Higher score (97 vs 92)
97
Gemini 4 Argon
Google · $2/$10 per 1M tokens (API, intro) — Higher score (96 vs 92)
Gemini 4 Argon vs DeepSeek V4.1 Flash →
96
MiMo-V2.6-Pro
Xiaomi · Free (open weights) · $0.44/$0.87 per 1M · free tier — Higher score (96 vs 92)
96

🔗 Comparisons & guides

Claude Opus 5.5 vs DeepSeek V4.1 FlashHead-to-head comparison
DeepSeek V4.1 Flash vs Kimi K3Head-to-head comparison
Gemini 4 Argon vs DeepSeek V4.1 FlashHead-to-head comparison
Best AI for Coding 2026: 7 Models & Tools ComparedBest-of guide
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❓ Frequently Asked Questions

What is DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash is the current flagship from Chinese lab DeepSeek; the October 17 build now runs the DeepSeek app, website and API and replaced the older V4-Pro and V4-Flash models. It is released with open weights under the MIT license and offered through a very low-cost API with a 1M-token context, which makes it one of the cheapest ways to get strong reasoning and coding performance.

What is DeepSeek V4.1 Flash best for?

DeepSeek V4.1 Flash is a strong pick for: High-volume API workloads on a tight budget; Self-hosting a strong reasoning model; Maths, logic and coding tasks.

How much does DeepSeek V4.1 Flash cost?

DeepSeek V4.1 Flash starts at Free · API $0.30/$1.20 per 1M (Free chat at chat.deepseek.com · API $0.30/$1.20 per 1M tokens, cheaper off-peak · Free weights (MIT license)). A free tier is available.

Is DeepSeek V4.1 Flash free?

Yes — DeepSeek V4.1 Flash has a free tier. Pricing: Free · API $0.30/$1.20 per 1M (details: Free chat at chat.deepseek.com · API $0.30/$1.20 per 1M tokens, cheaper off-peak · Free weights (MIT license)).

What are the best alternatives to DeepSeek V4.1 Flash?

The highest-rated AI chatbots & text models from other providers on AIVerso are Claude Opus 5.5 (99/100), GPT-6 Astra (98/100), Fugu Ultra v2 (97/100).

Does DeepSeek V4.1 Flash have an API?

Yes, DeepSeek V4.1 Flash can be used via an API.

Is DeepSeek V4.1 Flash open source?

Yes — DeepSeek V4.1 Flash is available as open source / open weights, so it can be self-hosted.

How does AIVerso rate DeepSeek V4.1 Flash?

DeepSeek V4.1 Flash scores 92/100 on AIVerso and ranks #13 of 43 in Text & Chat. Scores combine public benchmark results, features and pricing; commissions never influence them.

How we rate: Scores and capability ratings are based on public benchmarks, provider documentation, features and pricing — not on commission rates. Prices can change; check the provider's site before buying. Last updated: October 22, 2026.